A sweeping survey of land-based ecosystems finds that very few still support all the animals they used to. Reintroducing lost species could help.
A new study estimates that invasive species have cost the world more than $1 trillion since 1970. That’s almost certainly an underestimate.
Scientists digging into the remnants of an ancient watering hole in Nebraska discovered evidence of an Africa-like savanna, complete with rhinos.
Mutations in a gene that helps nerve cells work properly rob rabbits of their ability to hop. Instead, the animals use their front paws to move.
There are more than 3,000 species of cicadas, but the best known in North America are periodical cicadas, which emerge every 13 or 17 years.
Honeybees use pheromones and flapping wings to tell each other where to find the queen — so they can all be together.
A genus is a group of closely related species. It’s the first part of the two-part system called binomial nomenclature, used to name living things.
From learning the names of their toys to sniffing out viruses in human sweat, dogs are far more than household pets.
Dinosaurs emerged between 243 and 233 million years ago. While some died out 66 million years ago, others are still with us — birds.